Marc Rich (Pictured) and Pincus Green

Source of wealth: commodities tradingCharged with tax evasion, mail and wire fraud, commodities traders marc Rich and Pincus Green fled to Europe in 1983. Pair fled to Europe, later pardoned by President Clinton. Rich was a NYU dropout who started in the mail room of Philipp Brothers. He met Green and together they built Phibro into the world’s largest trader of oil, grain and metals. Departing in the mid-1970s, they formed Marc Rich & Co., the forerunner of Glencore Xstrata. Green retired after heart surgery in 1992. Rich died in June.